This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A364220 #6 Jul 15 2023 05:53:45 %S A364220 42,148180,174762,2366376,2809300,3758676,3938856,4463016,4987176, %T A364220 6559656,6817149,11975380,12325416,12849576,13029756,13373736, %U A364220 15470376,17567016,18271356,23332776,23512956,24037116,24561276,25953576,26657916,27974439,28754556,28754557 %N A364220 Starts of runs of 5 consecutive integers that are Jacobsthal-Niven numbers (A364216). %H A364220 Amiram Eldar, <a href="/A364220/b364220.txt">Table of n, a(n) for n = 1..1000</a> %t A364220 consecJacobsthalNiven[4*10^5, 5] (* using the function from A364217 *) %o A364220 (PARI) lista(3*10^6, 5) \\ using the function from A364217 %Y A364220 Subsequence of A364216, A364217, A364218 and A364219. %Y A364220 A364221 is a subsequence. %Y A364220 Cf. A330928. %K A364220 nonn,base %O A364220 1,1 %A A364220 _Amiram Eldar_, Jul 14 2023